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    Question

    Which of the following plays an important role in

    regulating the amount of light entering into the eye?
    A Cornea Correct Answer Incorrect Answer
    B Pupil Correct Answer Incorrect Answer
    C Crystalline lens Correct Answer Incorrect Answer
    D Sclera Correct Answer Incorrect Answer

    Solution

    Pupil controls light entry by expanding or contracting based on brightness levels. 

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